package com.sky.service.impl;

import ch.qos.logback.core.joran.action.IADataForComplexProperty;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.OrderStatusException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.service.OrderService;
import com.sky.utils.HttpClientUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;

import com.sky.webSocket.WebSocketServer;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.yaml.snakeyaml.events.Event;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

@Service
@Slf4j
public class OrderServicelmpl implements OrderService {
    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private ShopingCardMapper shopingCardMapper;
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private OrderDetailMapper orderDetailMapper;
    @Autowired
    private UserMapper userMapper;
    @Autowired
    private WeChatPayUtil weChatPayUtil;
    @Autowired
    private WebSocketServer webSocketServer;


    @Value("${sky.shop.address}")
    private String shopAddress;

    @Value("${sky.baidu.ak}")
    private String ak;

    /**
     * 提交订单
     * @param ordersSubmitDTO
     * @return
     */
    @Override
    @Transactional//事务注解
    public OrderSubmitVO submit(OrdersSubmitDTO ordersSubmitDTO) {
        //1.判断数据有无错误(地址簿,购物车数据是否为空)
        AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
        Long userId = BaseContext.getCurrentId();
        ShoppingCart shoppingCart = ShoppingCart.builder().userId(userId).build();
        List<ShoppingCart> shoppingCarts = shopingCardMapper.select(shoppingCart);
        if (addressBook == null) {
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }


        if (shoppingCarts == null || shoppingCarts.size() == 0) {
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }
        //检查配送是否超出范围
         checkOutOfRange(addressBook.getCityName()+addressBook.getDistrictName()+addressBook.getDetail());


        //2.为order表添加一条数据
        Orders orders = new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO, orders);
        orders.setPhone(addressBook.getPhone());
        orders.setOrderTime(LocalDateTime.now());
        orders.setAddress(addressBook.getDetail());
        orders.setStatus(Orders.PENDING_PAYMENT);
        orders.setUserId(userId);
        orders.setPayStatus(Orders.UN_PAID);
        orders.setConsignee(addressBook.getConsignee());
        orders.setNumber(String.valueOf(System.currentTimeMillis()));//订单编码  用当前的时间搓来表示


        orderMapper.insert(orders);

        //3.为order_delial表添加一条或多条数据
        List<OrderDetail> orderDetailList = new ArrayList<>();

        for (ShoppingCart cart : shoppingCarts) {
            OrderDetail orderDetail = new OrderDetail();
            BeanUtils.copyProperties(cart, orderDetail);
            orderDetail.setOrderId(orders.getId());
            orderDetailList.add(orderDetail);
        }
        orderDetailMapper.insetBatch(orderDetailList);


        //封装返回结果
        OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder()
                .orderTime(orders.getOrderTime())
                .orderAmount(orders.getAmount())
                .id(orders.getId())
                .orderNumber(orders.getNumber()).build();


        return orderSubmitVO;
    }


    /**
     * 订单支付
     *
     * @param ordersPaymentDTO
     * @return
     */
    @Override
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.getById(userId);

//        //调用微信支付接口，生成预支付交易单
//        JSONObject jsonObject = weChatPayUtil.pay(
//                ordersPaymentDTO.getOrderNumber(), //商户订单号
//                new BigDecimal(0.01), //支付金额，单位 元
//                "智慧餐饮管理系统订单", //商品描述
//                user.getOpenid() //微信用户的openid
//        );
//
//        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
//            throw new OrderBusinessException("该订单已支付");
//        }

        JSONObject jsonObject = new JSONObject();
        jsonObject.put("code", "ORDERPAID");
        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));


        //为替代微信支付成功后数据库订单状态跟新,多定义一个方法进行修改

        Integer OrderPaidStatus = Orders.PAID;//订单状态,已支付
        Integer OrderStatus = Orders.TO_BE_CONFIRMED;//订单状态,待接单

        //发现没有支付时间  check_out属性赋值,所以再这里跟新
        LocalDateTime check_out_time = LocalDateTime.now();

        //获取订单号码
        String orderNumber = ordersPaymentDTO.getOrderNumber();

        log.info("调用updateStatus,用于替换微信支付跟新数据库状态的问题");
        orderMapper.updateStatus(OrderStatus, OrderPaidStatus, check_out_time, orderNumber);

        //清空购物车  跟新完后
        shopingCardMapper.deleteByUserId(BaseContext.getCurrentId());


      //  根据订单号查询订单id
      Long orderId= orderMapper.selectIdByNumber(orderNumber);



        //当用户下单成功后提醒后端下单成功
        Map map = new HashMap();
        map.put("type",1);//1表示来单提醒  2.表示催单
        map.put("orderId",orderId);
        map.put("content","订单号"+orderNumber);
        String s = JSON.toJSONString(map);
        webSocketServer.sendToAllClient(s);


        return vo;
    }

    /**
     * 支付成功，修改订单状态
     *
     * @param outTradeNo
     */
    @Override
    public void paySuccess(String outTradeNo) {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();

        // 根据订单号查询当前用户的订单
        Orders ordersDB = orderMapper.getByNumberAndUserId(outTradeNo, userId);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);


    }

    /**
     * 查询历史订单
     *
     * @param ordersPageQueryDTO
     * @return
     */
    @Override
    public PageResult getHistoryOrders(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());
        ordersPageQueryDTO.setUserId(BaseContext.getCurrentId());
        Page<Orders> page = orderMapper.select(ordersPageQueryDTO);
        //要把订单明细也加入page.getResult()中
        List<OrderVO> list = new ArrayList();
        if (page != null && page.getTotal() != 0) {
            //若查到
            for (Orders orders : page) {
                Long ordersId = orders.getId();
                List<OrderDetail> orderDetails = orderDetailMapper.selectByOrderId(ordersId);
                if (orderDetails.size() != 0) {
                    OrderVO orderVO = new OrderVO();
                    BeanUtils.copyProperties(orders, orderVO);
                    orderVO.setOrderDetailList(orderDetails);
                    list.add(orderVO);
                }
            }
        }
        return new PageResult(page.getTotal(), list);
    }

    /**
     * 查询订单详情
     *
     * @param id
     * @return
     */
    @Override
    public OrderVO orderDetail(Long id) {


        Orders orders = orderMapper.selectByid(id);
        List<OrderDetail> orderDetails = orderDetailMapper.selectByOrderId(id);
        OrderVO orderVO = new OrderVO();
        BeanUtils.copyProperties(orders, orderVO);
        orderVO.setOrderDetailList(orderDetails);
        return orderVO;
    }


    /**
     * 用户取消订单
     *
     * @param id
     */
    public void userCancelById(Long id) throws Exception {
        // 根据id查询订单
        Orders ordersDB = orderMapper.selectByid(id);

        // 校验订单是否存在
        if (ordersDB == null) {
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }

        //订单状态 1待付款 2待接单 3已接单 4派送中 5已完成 6已取消
        if (ordersDB.getStatus() > 2) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        Orders orders = new Orders();
        orders.setId(ordersDB.getId());

        // 订单处于待接单状态下取消，需要进行退款
        if (ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
            //调用微信支付退款接口
//            weChatPayUtil.refund(
//                    ordersDB.getNumber(), //商户订单号
//                    ordersDB.getNumber(), //商户退款单号
//                    new BigDecimal(0.01),//退款金额，单位 元
//                    new BigDecimal(0.01));//原订单金额

            //支付状态修改为 退款
            orders.setPayStatus(Orders.REFUND);
        }

        // 更新订单状态、取消原因、取消时间
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason("用户取消");
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    /**
     * 再来一单
     *
     * @param id
     */
    @Override
    public void repetition(Long id) {
        List<OrderDetail> orderDetails = orderDetailMapper.selectByOrderId(id);
        List<ShoppingCart> shoppingCartList = new ArrayList<>();
        for (OrderDetail orderDetail : orderDetails) {
            ShoppingCart shoppingCart = new ShoppingCart();
            BeanUtils.copyProperties(orderDetail, shoppingCart, "id");
            shoppingCart.setUserId(BaseContext.getCurrentId());
            shoppingCart.setCreateTime(LocalDateTime.now());
            shoppingCartList.add(shoppingCart);
        }


        shopingCardMapper.insertBatch(shoppingCartList);


    }


    /**
     * 检查客户的收货地址是否超出配送范围
     *
     * @param address
     */
    private void checkOutOfRange(String address) {
        Map map = new HashMap();
        map.put("address", shopAddress);
        map.put("output", "json");
        map.put("ak", ak);

        //获取店铺的经纬度坐标
        String shopCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        JSONObject jsonObject = JSON.parseObject(shopCoordinate);
        if (!jsonObject.getString("status").equals("0")) {
            throw new OrderBusinessException("店铺地址解析失败");
        }

        //数据解析
        JSONObject location = jsonObject.getJSONObject("result").getJSONObject("location");
        String lat = location.getString("lat");
        String lng = location.getString("lng");
        //店铺经纬度坐标
        String shopLngLat = lat + "," + lng;

        map.put("address", address);
        //获取用户收货地址的经纬度坐标
        String userCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        jsonObject = JSON.parseObject(userCoordinate);
        if (!jsonObject.getString("status").equals("0")) {
            throw new OrderBusinessException("收货地址解析失败");
        }

        //数据解析
        location = jsonObject.getJSONObject("result").getJSONObject("location");
        lat = location.getString("lat");
        lng = location.getString("lng");
        //用户收货地址经纬度坐标
        String userLngLat = lat + "," + lng;

        map.put("origin", shopLngLat);
        map.put("destination", userLngLat);
        map.put("steps_info", "0");

        //路线规划
        String json = HttpClientUtil.doGet("https://api.map.baidu.com/directionlite/v1/driving", map);

        jsonObject = JSON.parseObject(json);
        if (!jsonObject.getString("status").equals("0")) {
            throw new OrderBusinessException("配送路线规划失败");
        }

        //数据解析
        JSONObject result = jsonObject.getJSONObject("result");
        JSONArray jsonArray = (JSONArray) result.get("routes");
        Integer distance = (Integer) ((JSONObject) jsonArray.get(0)).get("distance");

        if (distance > 5000) {
            //配送距离超过5000米
            throw new OrderBusinessException("超出配送范围");
        }
    }

    /**
     * 订单搜索
     *
     * @param ordersPageQueryDTO
     * @return
     */
    @Override
    public PageResult conditionSearch(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());
        Page<Orders> ordersPage = orderMapper.select(ordersPageQueryDTO);
        //需要返回orderVOList
        List<Orders> ordersList = ordersPage.getResult();
        List<OrderVO> orderVOList = new ArrayList<>();
        //把ordersList变成orderVOList
        if (ordersList.size() != 0) {
            for (Orders orders : ordersList) {
                //1.把ordervo中的order属性补全
                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(orders, orderVO);
                //2.把ordervo中剩余的OrderDetail字符串补全
                //通过订单id得到该订单所有菜品信息的字符串
                Long ordersId = orders.getId();
                List<OrderDetail> orderDetails = orderDetailMapper.selectByOrderId(ordersId);
                // 将每一条订单菜品信息拼接为字符串（格式：宫保鸡丁*3；）
                List<String> orderDishList = orderDetails.stream().map(x -> {
                    String orderDish = x.getName() + "*" + x.getNumber();
                    return orderDish;
                }).collect(Collectors.toList());
                orderVO.setOrderDishes(String.join("", orderDishList));
                orderVOList.add(orderVO);
            }
        }
        return new PageResult(ordersPage.getTotal(), ordersList);
    }

    /**
     * - 各个状态的订单数量统计
     *
     * @return
     */
    @Override
    public OrderStatisticsVO getstatistics() {
        List<Orders> ordersList = orderMapper.selectAll();
        OrderStatisticsVO orderStatisticsVO = new OrderStatisticsVO();
        for (Orders orders : ordersList) {
            Integer status = orders.getStatus();
            if (status == Orders.TO_BE_CONFIRMED) {
                orderStatisticsVO.setToBeConfirmed((orderStatisticsVO.getToBeConfirmed() != null)
                        ? orderStatisticsVO.getToBeConfirmed() + 1
                        : 1);
            } else if (status == Orders.CONFIRMED) {
                orderStatisticsVO.setConfirmed((orderStatisticsVO.getConfirmed() != null)
                        ? orderStatisticsVO.getConfirmed() + 1
                        : 1);
            } else if (status == Orders.DELIVERY_IN_PROGRESS) {
                orderStatisticsVO.setDeliveryInProgress((orderStatisticsVO.getDeliveryInProgress() != null)
                        ? orderStatisticsVO.getDeliveryInProgress() + 1
                        : 1);
            }
        }


        return orderStatisticsVO;
    }

    /**
     * 接单
     *
     * @param ordersConfirmDTO
     */
    @Override
    public void confirm(OrdersConfirmDTO ordersConfirmDTO) {
        Long id = ordersConfirmDTO.getId();
        //必须是status=2才能接单
        Orders orders = orderMapper.selectByid(id);
        Integer status = orders.getStatus();
        if (status != Orders.TO_BE_CONFIRMED) {
            throw new OrderStatusException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders newOrders = Orders.builder().id(id).status(Orders.CONFIRMED).build();
        orderMapper.update(newOrders);
    }

    /**
     * 拒单
     *
     * @param ordersRejectionDTO
     */
    @Override
    public void rejection(OrdersRejectionDTO ordersRejectionDTO) {
        Long id = ordersRejectionDTO.getId();
        //必须是status=2才能拒单
        Orders orders = orderMapper.selectByid(id);
        Integer status = orders.getStatus();
        if (status != Orders.TO_BE_CONFIRMED) {
            throw new OrderStatusException(MessageConstant.ORDER_STATUS_ERROR);
        }
        //退款  因为没实现支付功能所以这个也不实现
        Orders newOrders = Orders.builder()
                .id(id)
                .status(Orders.CANCELLED)
                .cancelTime(LocalDateTime.now())
                .rejectionReason(ordersRejectionDTO.getRejectionReason())
                .build();
        orderMapper.update(newOrders);
    }

    /**
     * 取消订单
     *
     * @param ordersCancelDTO
     */
    @Override
    public void cancel(OrdersCancelDTO ordersCancelDTO) {
        Long id = ordersCancelDTO.getId();
        //必须是status=3才能取消订单
        Orders orders = orderMapper.selectByid(id);
        Integer status = orders.getStatus();
        if (status != Orders.CONFIRMED) {
            throw new OrderStatusException(MessageConstant.ORDER_STATUS_ERROR);
        }
        //退款  因为没实现支付功能所以这个也不实现


        Orders newOrders = Orders.builder()
                .id(id)
                .status(Orders.CANCELLED)
                .cancelTime(LocalDateTime.now())
                .cancelReason(ordersCancelDTO.getCancelReason())
                .build();
        orderMapper.update(newOrders);
    }

    /**
     * 派单
     *
     * @param id
     */
    @Override
    public void delivery(Long id) {
        //必须是status=3才能派单
        Orders orders = orderMapper.selectByid(id);
        Integer status = orders.getStatus();
        if (status != Orders.CONFIRMED) {
            throw new OrderStatusException(MessageConstant.ORDER_STATUS_ERROR);
        }

        Orders newOrders = Orders.builder().id(id).status(Orders.DELIVERY_IN_PROGRESS).build();

        orderMapper.update(newOrders);
    }

    /**
     * 完成订单
     *
     * @param id
     */
    public void complete(Long id) {
        // 根据id查询订单
        Orders ordersDB = orderMapper.selectByid(id);

        // 校验订单是否存在，并且状态为4
        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.DELIVERY_IN_PROGRESS)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        Orders orders = new Orders();
        orders.setId(ordersDB.getId());
        // 更新订单状态,状态转为完成
        orders.setStatus(Orders.COMPLETED);
        orders.setDeliveryTime(LocalDateTime.now());

        orderMapper.update(orders);
    }

    /**
     * 客户催单
     * @param id
     */
    @Override
    public void reminder(Long id) {

        Orders orders = orderMapper.selectByid(id);

        if (orders==null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }

        Map map = new HashMap<>();
        map.put("type",2);
        map.put("orderId",id);
        map.put("content","订单号为"+orders.getNumber());
        webSocketServer.sendToAllClient(JSON.toJSONString(map));

    }
}
